Of course. That´s the first thing I did when having the problem.
Changing to
<title><?php wp_title(''); ?></title>
does not solve it. So I think it has something to do with other plugins or the udesign theme.
For now I´ll have to go with:
<title><?php wp_title('true','right'); ?> | <?php bloginfo('name'); ?></title>
Thanks anyway!